Satyrus and Melitta, twin heirs to a rich kingdom on the Black Sea, become desperate fugitives when their mother, the Scythian warrior-princess Srayanka, is cut down in a savage act of betrayal. Accompanied by their tutor, the Spartan Philokles, they must make a perilous journey west, pursued by ruthless assassins, to find sanctuary with the army of their father's closest friend, Diodorus. But Diodorus is caught up in the tangled web of alliances, betrayals and intrigue that followed Alexander the Great's death, as his generals fought over the huge empire he had created - and soon the twins will have their first taste of real battle as two Macedonian warlords clash. In this violent and unstable world, they must chose sides carefully, as Antigonus One-Eye, and his brilliant son Demetrius, prepare to take on the might of Ptolemy's Egypt, and the forces gather for the biggest and most spectacular battle the world had ever seen - Gaza.